Malware Analysis Report

2024-10-10 10:40

Sample ID 240610-j1msqseh83
Target a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f
SHA256 a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f
Tags
socks5systemz botnet discovery
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f

Threat Level: Known bad

The file a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Unexpected DNS network traffic destination

Loads dropped DLL

Executes dropped EXE

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 08:08

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 08:08

Reported

2024-06-10 08:10

Platform

win10v2004-20240508-en

Max time kernel

141s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe"

Signatures

Detect Socks5Systemz Payload

Description Indicator Process Target
N/A N/A N/A N/A

Socks5Systemz

botnet socks5systemz

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 141.98.234.31 N/A N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1304 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp
PID 1304 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp
PID 1304 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp
PID 3948 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3948 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3948 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3948 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3948 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3948 wrote to memory of 2448 N/A C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe

"C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe"

C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp

"C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp" /SL5="$7014C,4736479,54272,C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe"

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe

"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe" -i

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe

"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
HK 141.98.234.31:53 aieuqva.ru udp
BG 93.123.39.193:80 aieuqva.ru tcp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
US 8.8.8.8:53 193.39.123.93.in-addr.arpa udp

Files

memory/1304-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1304-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-57B5G.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp

MD5 9e060fd52fe2d2c3d99f08a2c420fbe4
SHA1 ff4322563f4093cdcd878b54774bdd95ed167420
SHA256 c2448d11d0a1487e74f5d94961d1317910f5b7777541bb07e41c15b42b40d377
SHA512 36815790bc7e569a3c1a1809d9bcbd3e5742c2694f8a9137e1ec02eca183a5f5a1670bbd806c4510d5b3fb874780a70f7102574678f0f002d8fdfdff701672bb

memory/3948-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-107CG.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe

MD5 06b805dc35fc2098e05952fb6b7d12b4
SHA1 aeda8544af541e3284493eae5b8be35e16b6b654
SHA256 2a473adcac8d42d414ff92ded6fc601dd3f14b7fb4779e8fba3704f1674554f6
SHA512 9246e548e26490c835df28ca2c85c412ff2391d70d42d9f4dc5b4271b85b2398ff9cefc6be32548fa722ebc667549de6b559743a0246a3fcb86d9dc7984672d7

memory/3752-59-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3752-60-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3752-63-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3752-65-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-68-0x0000000000400000-0x000000000070E000-memory.dmp

memory/1304-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3948-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2448-71-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-74-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-77-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-80-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-83-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-87-0x0000000000970000-0x0000000000A12000-memory.dmp

memory/2448-86-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-93-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-96-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-99-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-102-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-105-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-108-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-112-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2448-115-0x0000000000400000-0x000000000070E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 08:08

Reported

2024-06-10 08:10

Platform

win11-20240419-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe"

Signatures

Detect Socks5Systemz Payload

Description Indicator Process Target
N/A N/A N/A N/A

Socks5Systemz

botnet socks5systemz

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 141.98.234.31 N/A N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2464 wrote to memory of 3500 N/A C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp
PID 2464 wrote to memory of 3500 N/A C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp
PID 2464 wrote to memory of 3500 N/A C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp
PID 3500 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3500 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3500 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3500 wrote to memory of 3116 N/A C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3500 wrote to memory of 3116 N/A C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe
PID 3500 wrote to memory of 3116 N/A C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe

"C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe"

C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp

"C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp" /SL5="$40210,4736479,54272,C:\Users\Admin\AppData\Local\Temp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.exe"

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe

"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe" -i

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe

"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe" -s

Network

Country Destination Domain Proto
HK 141.98.234.31:53 csayveu.net udp
BG 93.123.39.193:80 csayveu.net tcp
US 8.8.8.8:53 193.39.123.93.in-addr.arpa udp

Files

memory/2464-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2464-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-M131M.tmp\a761951c00f7f58d52344811cbb6b042a6c8d622e67db789fe2707afc03ba64f.tmp

MD5 9e060fd52fe2d2c3d99f08a2c420fbe4
SHA1 ff4322563f4093cdcd878b54774bdd95ed167420
SHA256 c2448d11d0a1487e74f5d94961d1317910f5b7777541bb07e41c15b42b40d377
SHA512 36815790bc7e569a3c1a1809d9bcbd3e5742c2694f8a9137e1ec02eca183a5f5a1670bbd806c4510d5b3fb874780a70f7102574678f0f002d8fdfdff701672bb

C:\Users\Admin\AppData\Local\Temp\is-3JRD4.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/3500-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe

MD5 06b805dc35fc2098e05952fb6b7d12b4
SHA1 aeda8544af541e3284493eae5b8be35e16b6b654
SHA256 2a473adcac8d42d414ff92ded6fc601dd3f14b7fb4779e8fba3704f1674554f6
SHA512 9246e548e26490c835df28ca2c85c412ff2391d70d42d9f4dc5b4271b85b2398ff9cefc6be32548fa722ebc667549de6b559743a0246a3fcb86d9dc7984672d7

memory/1704-60-0x0000000000400000-0x000000000070E000-memory.dmp

memory/1704-59-0x0000000000400000-0x000000000070E000-memory.dmp

memory/1704-65-0x0000000000400000-0x000000000070E000-memory.dmp

memory/1704-63-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-68-0x0000000000400000-0x000000000070E000-memory.dmp

memory/2464-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3500-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3116-71-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-74-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-77-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-80-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-83-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-86-0x00000000028F0000-0x0000000002992000-memory.dmp

memory/3116-89-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-94-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-97-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-100-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-103-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-106-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-109-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-113-0x0000000000400000-0x000000000070E000-memory.dmp

memory/3116-116-0x0000000000400000-0x000000000070E000-memory.dmp